This approach eliminates costly metals, toxic chemicals and specialised fabrication infrastructure — opening the door to ...
The graphite that slips from the point of your pencil onto a page may be of more use than simply writing and drawing. A team of researchers has shown that simple pencil lines can be used as an ...
The "lead" in your pencil is misnamed. The gray stuff is actually composed of graphite, which is the stablest form of the element carbon. Its bonded atoms are arranged in planar sheets, layered on top ...
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